161670707 has 8 divisors (see below), whose sum is σ = 176817072. Its totient is φ = 146599200.

The previous prime is 161670623. The next prime is 161670709. The reversal of 161670707 is 707076161.

161670707 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 161670707 - 2⁸ = 161670451 is a prime.

It is a super-2 number, since 2×161670707² = 52274835003759698, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161670709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14144 + ... + 22877.

It is an arithmetic number, because the mean of its divisors is an integer number (22102134).

Almost surely, 2^161670707 is an apocalyptic number.

161670707 is a deficient number, since it is larger than the sum of its proper divisors (15146365).

161670707 is a wasteful number, since it uses less digits than its factorization.

161670707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37429.

The product of its (nonzero) digits is 12348, while the sum is 35.

The square root of 161670707 is about 12714.9796303415. The cubic root of 161670707 is about 544.7665661357.

The spelling of 161670707 in words is "one hundred sixty-one million, six hundred seventy thousand, seven hundred seven".